mephenamine

例句：

1. 1. This medication is used to treat anxiety and insomnia.
   这种药物用于治疗焦虑和失眠。
2. 2. The patient was given the mephenamine injection for pain relief.
   患者接受了盐酸苯丙胺注射以缓解疼痛。
3. 3. Mephenamine is a controlled substance that can be dangerous if misused.
   盐酸苯丙胺是一种受控物质，如果滥用可能会很危险。